One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6,9,10)(7,11,8,12)(13,14,18,16)(15,23,27,20)(17,28,33,21)(19,22,35,29)(24,26,40,36)(25,37,30,38)(31,34,39,32)(41,42,44,43)(6,10)(11,12)(13,15,18,27)(14,20,16,23)(17,30,33,25)(19,36,35,26)(21,38,28,37)(22,40,29,24)(31,44,39,41)(32,43,34,42)(2,4)(13,16,18,14)(15,24,27,40)(17,31,33,39)(19,22,35,29)(20,36,23,26)(21,32,28,34)(25,38,30,37)(41,42,44,43)(5,7,9,8)(6,11,10,12)(13,17)(14,21)(15,25)(16,28)(18,33)(19,32)(20,37)(22,39)(23,38)(24,41)(26,43)(27,30)(29,31)(34,35)(36,42)(40,44)(5,8,9,7)(6,12,10,11)(15,26)(17,32)(19,35)(20,24)(21,39)(22,29)(23,40)(25,30)(27,36)(28,31)(33,34)(37,38)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.